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<pre>
$a = 5; // Integer
$b = 5.34; // Float
$c = "hello"; // String
$d = true; // Boolean
$e = NULL; // NULL
$a = (array) $a;
$b = (array) $b;
$c = (array) $c;
$d = (array) $d;
$e = (array) $e;
//To verify the type of any object in PHP, use the var_dump() function:
var_dump($a);
var_dump($b);
var_dump($c);
var_dump($d);
var_dump($e);
</pre>
<p>When converting into arrays, most data types converts into an indexed array with one element.</p>
<p>NULL values converts to an empty array object.</p>
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array(1) { [0]=> int(5) } array(1) { [0]=> float(5.34) } array(1) { [0]=> string(5) "hello" } array(1) { [0]=> bool(true) } array(0) { }
When converting into arrays, most data types converts into an indexed array with one element.
NULL values converts to an empty array object.